package com.lxr0860.lxr0860production_test.utils;

import android.util.Log;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * log日志统计保存
 * 会打印i，e，w，不会打印d
 * 每次开启应用，就会把上次的log信息覆盖
 *
 * @author way
 */
public class LogcatHelper {
    private static LogcatHelper INSTANCE = null;
    private static String PATH_LOGCAT;
    private LogDumper mLogDumper = null;
    private int mPId;

    /**
     * 初始化目录
     */
    public void init() {
        PATH_LOGCAT = Contants.LOGCAT_APP;
        File file = new File(PATH_LOGCAT);
        if (!file.exists()) {
            file.mkdirs();
        }else{
            if (file.listFiles() != null) {
                for (File listFile : file.listFiles()) {
                    listFile.delete();
                }
            }
        }
    }

    public static LogcatHelper getInstance() {
        if (INSTANCE == null) {
            INSTANCE = new LogcatHelper();
        }
        return INSTANCE;
    }

    private LogcatHelper() {
        init();
        mPId = android.os.Process.myPid();
    }

    public void start() {
        mLogDumper = null;
            mLogDumper = new LogDumper(String.valueOf(mPId), PATH_LOGCAT);
        Log.i("path", PATH_LOGCAT);///storage/sdcard0/miniGPS
            mLogDumper.start();

    }

    public void stop() {
        if (mLogDumper != null) {
            if (mLogDumper.isAlive()) {
                mLogDumper.stopLogs();
            }
            mLogDumper = null;
        }
    }

    private class LogDumper extends Thread {
        private Process logcatProc;
        private BufferedReader mReader = null;
        private boolean mRunning = true;
        String cmds = null;
        private String mPID;
        private FileOutputStream out = null;

        public LogDumper(String pid, String dir) {
            mPID = pid;
            try {
                out = new FileOutputStream(new File(dir,
                        "app_"+GetSystemInfoUtlils.getSystemDate() + ".log"));
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }
/**
 *
 * 日志等级：*:v , *:d , *:w , *:e , *:f , *:s
 *
 * 显示当前mPID程序的 E和W等级的日志.
 *
 * */
// cmds = "logcat *:e *:w | grep "(" + mPID + ")"";
 cmds = "logcat | grep (com.lxr5002.lxr5002_developtest)";//打印所有日志信息
// cmds = "logcat -s way";//打印标签过滤信息
//            cmds = "logcat *:e *:i | grep (" + mPID + ")"; //会打印i，e，w，不会打印d
//            cmds = "logcat *:v , *:d , *:w , *:e , *:f , *:s| grep (com.uniriho.detonator)";
        }

        public void stopLogs() {
            mRunning = false;
        }

        @Override
        public void run() {
            try {
                logcatProc = Runtime.getRuntime().exec(cmds);
                mReader = new BufferedReader(new InputStreamReader(
                        logcatProc.getInputStream()), 1024);
                String line = null;
                while (mRunning && (line = mReader.readLine()) != null) {
                    if (!mRunning) {
                        break;
                    }
                    if (line.length() == 0) {
                        continue;
                    }
                    if (out != null && line.contains(mPID)) {
                        out.write((GetSystemInfoUtlils.getSystemDate() + " " + line + "\n")
                                .getBytes());
                    }
                }
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (logcatProc != null) {
                    logcatProc.destroy();
                    logcatProc = null;
                }
                if (mReader != null) {
                    try {
                        mReader.close();
                        mReader = null;
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                if (out != null) {
                    try {
                        out.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                    out = null;
                }
            }
        }
    }
}